Louis wachtler



(No Model.)

L. WAOHTLER.

PIPE WRBNGH.

No. 516,286. Pat e-ntedMar. 13,1 94.

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UNITED STATES PATENT OFFICE.

LOUIS WAOHTLER, OF ALTENBURG, GERMANY.

PIPE-WRENCH.

SPECIFICATION forming part of Letters Patent No. 516,286, dated March13, 1894:.

Application filed October 2, 1893. Serial No. 487,028. (No model)Patented in Austria-Hungary December 14, 1891, No. 40,259 and No.73,559.

To all whom it may concern.-

Be it known that I, LOUIS WACHTLER, a subject of the Emperor of Germany,residing at Altenburg, in the Grand Duchy of Saxony and Empire ofGermany, have invented certain new and useful Improvements in Pipe-Wrenches, (for which I have obtained a patent in Austria-Hungary, No.40,259 and No. 73,559, bearing date December 14., 1891,) of which thefollowing is a specification.

My invention relates to and has for its object, the provision of a pipewrench which construction, arrangement and combination can be easily andquickly adjusted to grip any slzed pipe that can be inserted between theaws thereof, and consists of the novel of parts all of which will behereinafter more fully described.

In the accompanying drawings, Figure 1 represents a side view, partbroken away, of my invention. Fig. 2 represents an edge View of thesame. Fig. 3 represents a side view of wrench showing position of jawsand wrench when adjusted to grip a pipe. Fig. 4 represents a perspectiveview of wrench.

The wrench as shown in the drawings, is provided with a head A having afixed jaw a thereon, with a curved outer face a and an oblique angledserrated inner face a which causes the same to assume the shape of abook. The headA consists essentially of two plates or flanges B B, whichare connected by the fixed jaw a; these plates or flanges being providedon their inner faces with horizontal grooves b b diametrically oppositeeach other, and are for the reception of the laterally extending flangesc c on each side of sliding jaw Cfor the purpose of holdingsaid jaw inposition and alignment while sliding back and forth. The lower part ofsliding jaw O as shown, is elongated so as to strengthen the same and atthe same time allow the jaw to be opened to a greater extent; the samehaving laterally extending flanges at c on each side for the purposehereinafter described, and rack gearing'c on the bottom thereof. Thehead A and handle D are pivotally connected to each other bya pivot pind which passes transversely through the flanges or plates B B and handleD. The handle D being pivoted between the flanges BBin such a manner asto cause the segment gear (1 into which the handle terminates at itsupperend, to mesh with rack c of sliding bar or jaw. The wrench asherein described, is simple, strong and durable, and can be easily andquickly adjusted to pipes of various sizes by simply moving the handleto the left, which causes the sliding jaw to open, or vice versa toclose the same. Thus in turning a pipe in a certain direction, theharder the pipe turns, the more force is applied to the handle, which inturn causes the sliding jaw to grip the pipe much firmer, this being animportant feature in using a pipe wrench.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A wrench comprising a handle terminating at its upper end into a segmentgear, and pivoted between two parallel plates or flanges, of a fixed jawhaving an oblique angled serrated inner face connecting said plates orflanges, and a horizontal sliding bar having an oblique angled serratedinner faced jaw thereon, and provided on the underside thereof with rackgearing, with which the segment gear of handle meshes,substantially asdescribed.

In testimony that I claim the foregoing as my invention I have signed myname in the presence of two subscribing witnesses.

LOUIS WAGHTLER.

